1.

Form the differential equation by eliminating the arbitrary constant from the equation y = e^(x) (a cos 2x + b sin 2x)

Answer»

`(d^(2)y)/(dx^(2)) -2 (DY)/(dx) + 5Y = 0`
`(d^(2)y)/(dx^(2)) + 2 (dy)/(dx) + 5y = 0`
`(d^(2)y)/(dx^(2)) -2 (dy)/(dx) - 5y = 0`
`(d^(2)y)/(dx^(2)) + 2 (dy)/(dx) + 2 (dy)/(dx) - 5y = 0`

ANSWER :A


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